Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 605 · 40 questions

Remember (Shape tells the part): Cell: long and short line (long = +). Battery: two or more cells. Wire: straight line. Junction: a dot. Bulb: circle with a cross. Switch: line lifted at a gap. Resistor: rectangle. Capacitor: two equal parallel lines. Diode: triangle against a bar; LED: the same with two arrows out. Circle with M = motor, A = ammeter, V = voltmeter.

1. 1.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a circle with M inside (c) triangle, bar and arrows (d) a dot where wires meet
2. 2.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) voltmeter (b) capacitor (c) battery (d) junction
3. 3.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) battery (b) bulb (c) wire (d) ammeter
4. 4.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) bulb (c) junction (d) battery
5. 5.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) wire (b) switch (c) voltmeter (d) resistor
6. 6.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) neither line (c) both lines (d) the shorter line
7. 7.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) a small empty box (c) a plain rectangle (d) triangle, bar and arrows
8. 8.Which drawing is the symbol for an LED? (a) a circle with a cross (b) two equal parallel lines (c) triangle, bar and arrows (d) one tall, one short bar
9. 9.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) capacitor (b) motor (c) wire (d) switch
11. 11.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) to make it colourful (c) symbols are heavier (d) quick and clear for all
12. 12.Which drawing is the symbol for an ammeter? (a) a plain rectangle (b) a circle with A inside (c) a circle with an X in it (d) triangle, bar and arrows
13. 13.True or false: a plain rectangle is the symbol for an LED. (a) False (b) True
14. 14.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
15. 15.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) cell (b) motor (c) LED (d) diode
16. 16.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) cell (b) bulb (c) switch (d) capacitor
17. 17.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
18. 18.Which drawing is the symbol for a switch? (a) a small empty box (b) a long and a short line (c) two equal parallel lines (d) a line lifted at a gap
19. 19.Which drawing is the symbol for a cell? (a) a long and a short line (b) a small empty box (c) a circle with M inside (d) a line lifted at a gap
20. 20.Which drawing is the symbol for a junction? (a) one tall, one short bar (b) a small empty box (c) a dot where wires meet (d) a line lifted at a gap
21. 21.True or false: a straight line is the symbol for a switch. (a) False (b) True
22. 22.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) wavy lines (c) dotted circles (d) little stars
23. 23.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) switch (b) voltmeter (c) capacitor (d) diode
24. 24.Which drawing is the symbol for a bulb? (a) two or more cell symbols (b) a circle with a cross (c) a circle with A inside (d) two equal parallel lines
25. 25.True or false: a plain rectangle is the symbol for a switch. (a) True (b) False
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) cell (b) ammeter (c) voltmeter (d) resistor
27. 27.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
28. 28.True or false: triangle against a bar is the symbol for a bulb. (a) True (b) False
29. 29.Which drawing is the symbol for a wire? (a) a circle with V inside (b) a straight line (c) a circle with a cross (d) a circle with an X in it
30. 30.True or false: a circle with V inside is the symbol for a motor. (a) False (b) True
31. 31.True or false: two equal parallel lines is the symbol for a bulb. (a) True (b) False
32. 32.Which drawing is the symbol for a resistor? (a) a long and a short line (b) a small empty box (c) one tall, one short bar (d) a circle with V inside
33. 33.Which drawing is the symbol for a motor? (a) a long and a short line (b) a small empty box (c) a circle with M inside (d) triangle against a bar
34. 34.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
35. 35.Which drawing is the symbol for a battery? (a) a plain rectangle (b) a circle with A inside (c) a small empty box (d) many long-short pairs
36. 36.Which drawing is the symbol for a cell? (a) two equal parallel lines (b) many long-short pairs (c) one tall, one short bar (d) a circle with an X in it
37. 37.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
38. 38.True or false: triangle against a bar is the symbol for a wire. (a) False (b) True
39. 39.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) LED (c) junction (d) switch
40. 40.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) cell (b) motor (c) wire (d) diode

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